Opposite to `see`. Checks that a text is not present on a page.
Use context parameter to narrow down the search.

```js
I.dontSee('Login'); // assume we are already logged in.
I.dontSee('Login', '.nav'); // no login inside .nav element
```

@param {string} text which is not present.
@param {CodeceptJS.LocatorOrString} [context] (optional) element located by CSS|XPath|strict locator in which to perfrom search.
@returns {void} automatically synchronized promise through #recorder
